Side by side

Grand Seiko STGF359vsTudor Black Bay One 31

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Grand Seiko STGF359

Owners widely praise the Grand Seiko STGF359 for its elegant pairing with an engagement ring. Some owners find the 29mm case size too small for a man's wrist, while others suggest it can be worn by men with smaller wrists, recommending an in-person try-on. One owner notes potential date wheel misalignment requiring servicing. The bracelet has a maximum perimeter of 185mm, with extra links available. On balance, owners value the Grand Seiko STGF359 for its elegant aesthetic, though its small size is a point of consideration.

From video reviewers

The Grand Seiko STGF359 features a 9F quartz movement with exceptional accuracy, deviating by only +/−10 seconds per year. A drawback of the watch is its 40mm case size, which may be a concern for those with smaller wrists. Reviewers disagree on the type of movement, with one praising the 9F quartz and the other highlighting the spring drive movement.

Tudor Black Bay One 31

Owners widely report the Tudor Black Bay One 31's polished case and bracelet scratch easily, though its wearability under gloves and robust movement are praised. Some desire more micro-adjustment options on the clasp, and a lack of contrast between the silver dial and hands is noted. The 31mm size may be a consideration for daily wear due to its 50-hour power reserve. On balance, owners and reviewers appreciate the Tudor Black Bay One 31 for its comfortable wearability and robust movement, despite concerns about case scratching and clasp adjustability.

At a glance

13 of 29 specs differ
Diameter
STGF35928.9mm
Black Bay One 3131mm
Power Reserve
STGF35940h
Black Bay One 3150h
Water Resistance
STGF359100m
Black Bay One 31100m
MSRP
STGF359$2,600
Black Bay One 31$4,600

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
28.9mm
31mm
Thickness
8.7mm
9.5mm
Lug-to-Lug
35.4mm
46mm
Lug Width
14mm
17mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Anthracite

Movement

3 specs
Caliber
4J52
MT5201
Type
Quartz
Automatic
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$2,600
$4,600
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